Steps to reproduce:

1. Open the attached project
2. Drag the NewMonoBehaviour script asset from the Project window to the Hierarchy window
3. Observe the Console window

Actual results: ArgumentException: Visual mode Link is not supported
Parameter name: visualMode errors are thrown when the dragged script asset enters the Hierarchy window

Expected results: No errors or warnings are thrown when dragging script assets into the Hierarchy window

Reproducible with versions: 6000.3.0a2, 6000.3.1f1, 6000.4.0b1, 6000.5.0a3  

Can’t test with versions: 6000.0.64f1, 6000.2.14f1, 6000.3.0a1 (Hierarchy V2 not available)

Reproducible on (OS): Ubuntu 24.04 

Not reproducible on (OS): macOS 26.1

Notes:

• The issue did not reproduce with Prefabs or other assets